• Title/Summary/Keyword: IEEE 802.15.4 ZigBee

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Performance Analysis of IEEE 802.15.4/ZigBee System in Various Channel Environments (다양한 채널 환경에서 IEEE 802.15.4/ZigBee 시스템의 성능 분석)

  • Moon, Sangmi;Kim, Bora;Malik, Saransh;Kim, Youngil;Yeo, Kunmin;Kim, Daejin;Hwang, Intae
    • Journal of the Institute of Electronics and Information Engineers
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    • v.50 no.6
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    • pp.22-32
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    • 2013
  • Wireless Sensor Network(WSN) has attracted great interest recently and the necessity of ZigBee has appeared to standardize and apply the upper layer specification based on the IEEE 802.15.4 standard specification in industrial field. Currently, there are many studies about the IEEE 802.15.4/ZigBee communication channel. And it is subject of interest to analyze the performance in various channel environments. In this paper, we propose channel models through the analysis of the IEEE 802.15.4 radio wave propagation characteristics in various channel environments. Also, we have analyzed the performance of the IEEE 802.15.4/ZigBee for the standard of physical layer of 2.4GHz band in each channel environments.

Advanced Sensor Communication Algorithm based on IEEE 802.15.4/ZigBee for High Speed Train Environment (고속 철도 환경을 위한 IEEE 802.15.4/ZigBee 기반 개선된 센서 통신 알고리즘)

  • Moon, Sangmi;Kim, Bora;Malik, Saransh;Kim, Daejin;Kim, Cheolsung;Hwang, Intae
    • Journal of the Institute of Electronics and Information Engineers
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    • v.50 no.10
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    • pp.3-12
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    • 2013
  • Wireless Sensor Network (WSN) is used in the railway field in terms of efficient management and maintenance. Sensor communication technology based on IEEE 802.15.4/ZigBee is used in low speed train. However, it is difficult to apply in the high speed train that exposed to severe wireless channel environments. In this paper, we propose the sensor communication algorithm for high speed train environment. we improve error rate and throughput using Equalizer, Multiple Input Multiple Output (MIMO), Flexible Spreading Factor (SF) and Modulation. Also, we have analyzed the performance of the IEEE 802.15.4/ZigBee based on the standard of physical layer of 2.4GHz band in each algorithms. Simulation results show that proposed algorithms can improve error rate and throughput of conventional system.

Implementation of ZigBee Home Control System (ZigBee 스펙에 의한 가전 제어 구현)

  • Park, Woo-Chool;Kim, Young-Ho;Kim, Dae-Whan
    • Proceedings of the KIEE Conference
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    • 2004.11c
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    • pp.228-230
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    • 2004
  • ZigBee Alliance is a network designed for low-cost and very low-power short-range wireless communications. The ZigBee Alliance is a consortium formed by several leading semiconductor and industrial manufactures, and end users. One of the tasks of this organization is the definition of the networking support and applications profiles that will use IEEE Std 802.15.4-compliant transceivers. In the case of IEEE Std 802.15.4, the ZigBee Alliance is an organization that has led the development of the upper layers, through the definition of application profiles. We have implemented ZigBee home control system, however we have not fully implemented. Because of the ZigBee is not perfectly standarded. We will have to implement according to ZigBee Specifications.

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A Design and Implementation of Multimedia Contents Services System Using ZigBee in Ubiquitous Environment (유비쿼터스 환경에서 ZigBee를 이용한 멀티미디어 컨텐츠 서비스 시스템 설계 및 구현)

  • Kim, Min-Sung;Chung, Yeong-Jee
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2009.10a
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    • pp.1014-1017
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    • 2009
  • Ubiquitous makes it possible to expand a short-distant wireless communications infra and provide various services. Especially, it is very important to develop multimedia contents service technology through ZigBee and WPAN technology. But because the data transmission rate of IEEE 802.15.4 Standard ZigBee is low, there are many barriers for multimedia contents services. In this paper, to improve ZigBee that has the limitation of transmission rate in IEEE 802.15.4 Standard, an upgraded model to 1Mbps through MAC Layer remodeling is designed. And Zigbee-based broadcasting multimedia contents services system is designed and implementation to provide the service in Ubiquitous environment.

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Compact Software Design and Implementation of IEEE802.15.4 and ZigBee

  • Thai, Pham Ngoc;Que, Victoria;Hwang, Won-Joo
    • Journal of Korea Multimedia Society
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    • v.11 no.6
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    • pp.835-844
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    • 2008
  • ZigBee devices are limited in resources especially on power and computational capacity but also require real-time operation at MAC layer. Therefore, it is important to take those requirement into consideration of system software design. In this paper, we proposed a compact system software design to support simultaneously ZigBee and IEEE802.15.4. The design strictly respects the resource and real-time constraints while being optimized for specific functions of both Zigbee and IEEE802.15.4. Various evaluations are done to show significant metrics of our design.

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Design And Implementation of Zone Based Location Tracking System Using ZigBee in Indoor Environment (실내 환경에서 ZigBee를 이용한 Zone 기반 위치추적 시스템 설계 및 구현)

  • Nam, Jin-Woo;Chung, Yeong-Jee
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2009.10a
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    • pp.1003-1006
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    • 2009
  • Recently, Ubiquitous computing technology is increasing necessity for object recognition and a location tracking technology to meet various applications. The location tracking technology is the fundamental to the Context-Aware of users in Ubiquitous environment and its efficiency has to be improved using IEEE 802.15.4 ZigBee used in current infra such as ubiquitous sensor network. But because the IEEE 802.15.4 ZigBee protocol has limitation to apply location tracking technology such as ToA and TDoA, Zone-based Location Tracking technology using RSSI is needed. In this paper suggests RSSI-based 802.15.4 ZigBee local positioning protocol to support a positioning tracking service in Ubiqutous environment. And Zone-based location tracking system is designed for actual the indoor location tracking service.

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IEEE 802.15.4 and ZigBee Protocol : ZIGBEE Network Layer Using Ad-hoc On-Demand Distance Vector Routing (IEEE 802.15.4와 ZigBee Protocol : ZIGBEE Network Layer이 사용하는 AODV)

  • Lee Won-Geun
    • Proceedings of the Korea Information Processing Society Conference
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    • 2006.05a
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    • pp.1287-1290
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    • 2006
  • 무선 네트워크의 전송 방식은 유선 네트워크와 다르며, 따라서 유선 네트워크를 기반으로 설계된 인터넷 프로토콜(TCP/IP)은 무선네트워크 환경에서 불안정 하게 작동한다. 본 논문에서는 기존의 유선 인터넷에 맞춰진 전송 프로토콜인 UDP와 TCP를 802.15.4 MAC기반의 ZigBee Protocol 환경에서 사용되는 특성과 AODV 및 확장 프로토콜인 AOMDV를 통해 인터넷에 결합된 네트워크 인터페이스를 가진 노드들의 특성과 관리의 중요함을 확인한다

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Implementation of 868/915 MHz LR-WPAN Transceiver for IoT Systems (IoT 시스템을 위한 868/915 MHz LR-WPAN 송수신기의 구현)

  • Lee, Jong-Bae;Lee, Seongsoo
    • Journal of IKEEE
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    • v.20 no.1
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    • pp.107-110
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    • 2016
  • In this paper, an IEEE 802.15.4 LR-WPAN 868/915 MHz ZigBee transceiver for IoT systems was designed and implemented. Non-coherent demodulation was exploited to satisfy ${\pm}80ppm$ frequency offset recommended in IEEE 802.15.4 LR-WPAN. Variable bitrate was supported according to operation modes. SPI module was embedded to connect various MCUs. The designed Zigbee transceiver was described in Verilog HDL and it was synthesized and verified in $0.18{\mu}m$ process. Its gate count was about 32,000 gates.

Analysis of HW/SW Platform for Vessel USN and Performance Evaluation of IEEE 802.15.4 Physical Layer (선박 USN HW/SW 플랫폼 분석과 IEEE 802.15.4 물리계층의 성능분석)

  • Choi, Myeong-Soo;Cho, Sung-Eui;Oh, Il-Whan;Kim, Seo-Gyun;Lee, Seong-Ro
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.34 no.5B
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    • pp.449-454
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    • 2009
  • In this paper, we analyze the hardware and software platform for constructing the USN in the vessel environment. Specifically, we analyze the mote technology based on the CC2420 in the hardware platform and analyze the TinyOS platform in the software platform. We also analyze the physical layer of IEEE802.15.4 which is the standard of the USN communication. In the simulation, we evaluate the performance in the physical layer of ZigBee/IEEE 802.15.4 by using the MATLAB and verify the validity of constructing the USN in the vessel environment based on the simulation results.

Beacon Interval and Superframe Duration Analysis for Energy-efficient Inter-PAN Communication in ZigBee Networks (ZigBee 네트워크에서 에너지 효율적인 Inter-PAN 통신을 위한 비컨 간격 및 슈퍼프레임 시간의 분석)

  • Kim, Min-Jeong;Shim, Jun-Ho
    • Proceedings of the Korean Information Science Society Conference
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    • 2010.06d
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    • pp.185-189
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    • 2010
  • IEEE 802.15.4는 저전력 무선 개인 네트워크(LR-WPAN, Low Rate-Wireless Personal Area Network)를 위한 표준으로 무선 센서 네트워크 기술에서 광범위하게 사용되고 있다. 그러나 IEEE 802.15.4는 멀티홉 네트워크나 여러 개의 PAN(Personal Area Network)으로 구성된 네트워크에 대해서는 상세하게 기술하고 있지 않다. 본 논문에서는 IEEE 802.15.4를 기반으로 하는 ZigBee RF4CE 네트워크에서 사용하는 multiple star 토폴로지를 주목하였다. multiple star 토폴로지처럼 여러 개의 PAN 간에 통신이 이루어질 경우, 이를 에너지 효율적으로 수행할 수 있도록 하는 비컨 간격(Beacon Interval)과 슈퍼프레임 시간(Superframe Duration)을 분석한다. 이를 위해 QualNet 시뮬레이터를 이용하여 multiple star 토폴로지 네트워크를 형성하고, 비컨 간격과 슈퍼프레임 시간을 결정하는 요소에 대해 분석하였다.

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